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New rating system

PostPosted: Mon May 07, 2012 5:47 pm
by adum
so i've updated the site with a new rating system for problem solvers: you start at 30 kyu, and work your way up as high as you can by solving new problems. i think this should be fun as well as educational.

let me know how this feels for people -- and if the ratings seem appropriate for the difficulty of the problems.

note: your old rating graphs were based on a different starting point. they now start at 30 kyu.

(this is using the Elo rating system for both problems and users.)

Re: New rating system

PostPosted: Fri Jun 01, 2012 10:43 am
by kaf
Nice improvement, Adum!
The hardest is to get through 10k-2k problems. Apparently, most of invalid problems fall into this range.

Re: New rating system

PostPosted: Fri Jun 01, 2012 10:41 pm
by adum3
let's get rid of the invalid problems!

Re: New rating system

PostPosted: Tue Jun 05, 2012 10:10 am
by kaf
Interesting fact, - if I edit a problem or look at the comments without solving it first, - my rating goes down. So, in order to fix an invalid problem, one has to sacrifice his rating. No wonder I'm still a 31k. :)

Re: New rating system

PostPosted: Tue Jun 05, 2012 4:09 pm
by adum
hmmn, i can try to modify that behavior for editors

Re: New rating system

PostPosted: Wed Jun 06, 2012 12:20 pm
by kaf
Honestly, I don't hang on my rating. That was meant as a joke. Overall, it's a good idea to spice up the site. Let's not make it unnecessarily complicated.

Re: New rating system

PostPosted: Thu Nov 15, 2012 3:53 am
by GeoGo
I don't really get this ranking - initialy I was jumping between 30 and 19 kyu. Now I stuck on 25 and despite solving lot of old problems I can't move up.

Re: New rating system

PostPosted: Sun Oct 05, 2014 3:27 am
by slashme
I still have to upgrade to a pro account (soon, I promise!) but I kind of enjoy the weekly challenge to see how quickly I can climb up to a good rating, and I find the problems to be generally appropriately rated.

To GeoGo, maybe you need to reset your stats? That way, you'll start fresh, and climb up through easy problems to your correct rank: should go quite quickly.

Re: New rating system

PostPosted: Tue Mar 12, 2019 2:11 pm
by Premian
Hi, my rating is still 3 stones weaker than my IGS rating. Is that normal? IGS rating is 6K.

Re: New rating system

PostPosted: Thu Mar 14, 2019 5:22 am
by Premian
My goproblems rank is 4 kyu now. I am finding some of the 3 to 5 kyu problems easier than some of the 10 kyu problems for some reason.